In-depth

Achalasia

Acute coronary syndrome

Acute kidney injury

Acute liver failure

Addison's disease

Airplane ear

Alcohol intolerance

Alcohol poisoning

Alcohol use disorder

Alcoholic hepatitis (Alcohol-associated hepatitis)

Allergies

Alpha-gal syndrome

Amniotic fluid embolism

Anaphylaxis

Aneurysms

Angina

Anthrax

Antibiotic-associated diarrhea

Appendicitis

Appendix cancer

Ascariasis

Astrocytoma

Atypical teratoid rhabdoid tumor (ATRT)

Autoimmune hepatitis

Bee sting

Benign paroxysmal positional vertigo (BPPV)

Bile reflux

Bird flu (avian influenza)

Blastocystis hominis

Botulism

Brain aneurysm

Brain tumor

Brainstem tumor

Burkitt lymphoma

C. difficile infection

Carbon monoxide poisoning

Carcinoid tumors

Cardiogenic shock

Castleman disease

Celiac disease

Central nervous system (CNS) lymphoma

Chagas disease

Chest pain

Cholecystitis

Cholera

Choroid plexus carcinoma

Chronic daily headaches

Chronic granulomatous disease

Chronic kidney disease

Chronic sinusitis

Churg-Strauss syndrome

Cirrhosis

Concussion

Congenital adrenal hyperplasia

Constipation in children

Coronavirus disease 2019 (COVID-19)

Craniopharyngioma

CSF leak (Cerebrospinal fluid leak)

Cyclic vomiting syndrome

Dengue fever

Diabetes insipidus

Diabetic coma

Diabetic ketoacidosis

Diabetic neuropathy

Diffuse large B-cell lymphoma

Diffuse midline glioma (DMG)

Diverticulitis

Drug allergy

Dumping syndrome

Dysphagia

E. coli

Ear infection (middle ear)

Ectopic pregnancy

Egg allergy

Ehrlichiosis and anaplasmosis

Encephalitis

Endometriosis

Enlarged liver

Eosinophilic esophagitis

Esophagitis

Exercise headaches

Food allergy

Food poisoning (foodborne illness)

Functional dyspepsia

Gallbladder cancer

Gastritis

Gastroparesis

Giardia infection (giardiasis)

Glaucoma

Glioblastoma

Glioma

H1N1 flu (swine flu)

Hangovers

Hantavirus pulmonary syndrome

Headaches in children

Heart attack

Heart failure

Heat exhaustion

Heatstroke

Helicobacter pylori (H. pylori) infection

Hemangioblastoma

Hemolytic uremic syndrome (HUS)

Hemophilia

Henoch-Schonlein purpura

Hepatitis A

Hepatitis B

Hepatitis C

Hirschsprung's disease

Hydrocele

Hypercalcemia

Hyperglycemia in diabetes

Hyponatremia

Indigestion

Infant reflux

Intestinal ischemia

Intestinal obstruction

Intracranial hematoma

Intussusception

Jellyfish stings

Kawasaki disease

Kidney stones

Krabbe disease

Lactose intolerance

Lead poisoning

Legionnaires' disease

Listeria infection

Liver cancer

Liver disease

Liver hemangioma

Low blood pressure (hypotension)

Malaria

Mantle cell lymphoma

Marginal zone lymphoma

MCAD deficiency

Median arcuate ligament syndrome (MALS)

Medulloblastoma

Meningitis

Menstrual cramps

A monthly period is bad enough. Add in painful menstrual cramps, and you may be cursing this thing called womanhood. How do you get relief?

Mesenteric lymphadenitis

Metastatic (stage 4) prostate cancer

Migraine

Milk allergy

Molar pregnancy

Morning sickness

Multiple myeloma

Multisystem inflammatory syndrome in children (MIS-C)

Myocardial ischemia

Norovirus infection

Optic glioma

Orchitis

Orthostatic hypotension (postural hypotension)

Ovarian cancer

Ovarian cysts

Ovarian hyperstimulation syndrome

Pancreatic cysts

Pancreatitis

Parvovirus infection

Peanut allergy

Pelvic inflammatory disease (PID)

Peptic ulcer

Peritoneal carcinomatosis

Peritonitis

Pilocytic astrocytoma

Pineal gland tumor

Pinworm infection

Pituitary tumors and adenomas

Plague

Polio

One of the most feared diseases of the 20th century, polio has been eradicated from the developed world but remains a threat in less developed nations.

Polymorphous light eruption

Porphyria

Postpartum preeclampsia

Preeclampsia

Primary CNS lymphoma

Pseudomembranous colitis

Pseudotumor cerebri (idiopathic intracranial hypertension)

Pyloric stenosis

Radiation sickness

Recurrent breast cancer

Reye's syndrome

Rotavirus

Ruptured eardrum (perforated eardrum)

Salmonella infection

Scarlet fever

Scarlet fever is a bacterial infection that causes a rash, fever and sore throat and usually affects children and adolescents.

Scrotal masses

Shaken baby syndrome

Shellfish allergy

Small bowel obstruction

Smallpox

Social anxiety disorder (social phobia)

Spider bites

Spinal headaches

Spontaneous coronary artery dissection (SCAD)

Staph infections

Stomach cancer

Strep throat

Subarachnoid hemorrhage

Sudden cardiac arrest

Symptom Checker

Foot pain? Headache? Sore throat? Skin rash? Use the Symptom Checker to find out what's causing your symptom.

Tapeworm infection

Testicular torsion

Thunderclap headaches

Toxic hepatitis

Toxic shock syndrome

Traumatic brain injury

Traveler's diarrhea

Vascular rings

Vasovagal syncope

Ventricular fibrillation

Wheat allergy

Whooping cough

Wilson's disease

Zollinger-Ellison syndrome

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

We use the data you provide to deliver you the content you requested. To provide you with the most relevant and helpful information, we may combine your email and website data with other information we have about you. If you are a Mayo Clinic patient, we will only use your protected health information as outlined in our Notice of Privacy Practices. You may opt out of email communications at any time by clicking on the unsubscribe link in the email.

Dec. 07, 2023

See also

  1. ​Grade 4 brain cancer: what to expect, treatment options and support
  2. Achalasia
  3. Acute coronary syndrome
  4. Acute liver failure
  5. Addison's disease
  6. Adrenal fatigue: What causes it?
  7. Airplane ear
  8. Alcohol intolerance
  9. Alcohol use disorder
  10. Allergy medications: Know your options
  11. Allergy-proof your home
  12. Anaphylaxis
  13. Anaphylaxis: First aid
  14. Aneurysms
  15. Angina
  16. Anthrax
  17. Antibiotic-associated diarrhea
  18. Ascariasis
  19. Aspirin allergy
  20. Atypical teratoid rhabdoid tumor (ATRT)
  21. Autoimmune hepatitis
  22. Beating Ovarian Cancer
  23. Bee sting
  24. Benign paroxysmal positional vertigo (BPPV)
  25. Bile reflux
  26. Blastocystis hominis
  27. Botulism
  28. Brain aneurysm
  29. Brain tumor
  30. Brain tumor FAQs
  31. Brainstem tumor
  32. Bump on the head: When is it a serious head injury?
  33. Burkitt lymphoma
  34. CA 125 test: A screening test for ovarian cancer?
  35. Calcium supplements: A risk factor for heart attack?
  36. Carbon monoxide poisoning
  37. Cardiac asthma: What causes it?
  38. Cardiogenic shock
  39. Celiac disease
  40. Central nervous system (CNS) lymphoma
  41. Chest pain
  42. Cholecystitis
  43. Chronic daily headaches
  44. Chronic granulomatous disease
  45. Chronic kidney disease
  46. Chronic kidney disease: Is a clinical trial right for me?
  47. Chronic sinusitis
  48. Churg-Strauss syndrome
  49. Cirrhosis
  50. Cirrhosis self-care and diet
  51. Concussion
  52. Concussion in children
  53. Concussion Telemedicine
  54. Congenital adrenal hyperplasia
  55. Constipation in children
  56. Coronavirus disease 2019 (COVID-19)
  57. COVID-19 travel advice
  58. COVID-19 vaccines for kids: What you need to know
  59. COVID-19 vaccines: Get the facts
  60. COVID-19 vs. flu: Similarities and differences
  61. COVID-19: How can I protect myself?
  62. COVID-19: Who's at higher risk of serious symptoms?
  63. Craniopharyngioma
  64. CSF leak (Cerebrospinal fluid leak)
  65. Cyclic vomiting syndrome
  66. Debunking COVID-19 myths
  67. Dengue fever
  68. Diabetic coma
  69. Diabetic Gastroparesis
  70. Diabetic ketoacidosis
  71. Diabetic neuropathy
  72. Diabetic neuropathy types: Symptoms tell the story
  73. Different types of COVID-19 vaccines: How they work
  74. Diffuse large B-cell lymphoma
  75. Diffuse midline glioma (DMG)
  76. Digestion: How long does it take?
  77. Diverticulitis
  78. Dumping syndrome
  79. E. coli
  80. Ear infection (middle ear)
  81. Ectopic pregnancy
  82. Effectively managing chronic kidney disease
  83. Egg allergy
  84. Ehrlichiosis and anaplasmosis
  85. Encephalitis
  86. Endometriosis
  87. Endometriosis FAQs
  88. Esophagitis
  89. Fecal transplant treatment of C. difficile at Mayo Clinic
  90. Fight coronavirus (COVID-19) transmission at home
  91. Flu masks
  92. Flu vaccine: Safe for people with egg allergy?
  93. Food allergy
  94. Food allergy or intolerance?
  95. Food poisoning (foodborne illness)
  96. Fructose intolerance: Which foods to avoid?
  97. Gallbladder cancer
  98. Gallbladder polyps: Can they be cancerous?
  99. Gastritis
  100. Giardia infection (giardiasis)
  101. Glaucoma
  102. Glioblastoma
  103. Glioma vs. glioblastoma: What's the difference?
  104. Guide to different tick species and the diseases they carry
  105. H1N1 flu (swine flu)
  106. Hantavirus pulmonary syndrome
  107. Headaches and hormones: What's the connection?
  108. Headaches in children
  109. Headaches: Treatment depends on your diagnosis and symptoms
  110. Heart attack
  111. Heart attack prevention: Should I avoid secondhand smoke?
  112. Heart attack symptoms: Know what's a medical emergency
  113. Heart Attack Timing
  114. Heart failure
  115. Heart failure action plan
  116. Heart failure and sex: Is it safe?
  117. Heat exhaustion
  118. Heatstroke
  119. Helicobacter pylori (H. pylori) infection
  120. Hemangioblastoma
  121. Hemolytic uremic syndrome (HUS)
  122. Hemophilia
  123. Henoch-Schonlein purpura
  124. Hepatitis B and Hepatitis C: What's the difference?
  125. Hepatitis C
  126. Hepatitis C screening
  127. Hepatitis C: How common is sexual transmission?
  128. Hepatitis C: What happens in end-stage liver disease?
  129. Herd immunity and COVID-19: What you need to know
  130. Hirschsprung's disease
  131. How do COVID-19 antibody tests differ from diagnostic tests?
  132. How kidneys work
  133. How well do face masks protect against COVID-19?
  134. Hypercalcemia
  135. Hyponatremia
  136. Infant reflux
  137. Infographic: Multiple Myeloma
  138. Intestinal ischemia
  139. Intracranial hematoma
  140. Intussusception
  141. Is hydroxychloroquine a treatment for COVID-19?
  142. Jellyfish stings
  143. Kawasaki disease
  144. Kidney disease FAQs
  145. Kidney stones
  146. Lead poisoning
  147. Listeria infection
  148. Liver cancer
  149. Liver disease
  150. Liver disease: How medications can harm the liver
  151. Liver hemangioma
  152. Living with Brain Tumors
  153. Long COVID: Lasting effects of COVID-19
  154. Long Term Brain Cancer Survivor
  155. Low blood sodium in older adults: A concern?
  156. Low-phosphorus diet: Helpful for kidney disease?
  157. Malaria
  158. Mantle cell lymphoma
  159. Marathon and the Heat
  160. Marginal zone lymphoma
  161. Mayo Clinic Minute: Meningitis 101 for college students
  162. Mayo Clinic Minute: Prevent migraines with magnetic stimulation
  163. Mayo Clinic Minute: Weathering migraines
  164. Mayo Clinic study reporting increased incidence of C. difficile infection
  165. MCAD deficiency
  166. Median arcuate ligament syndrome (MALS)
  167. Medications for liver failure
  168. Medulloblastoma
  169. Meningitis
  170. Migraine
  171. Migraine FAQs
  172. Migraine medicines and antidepressants
  173. Migraine treatment: Can antidepressants help?
  174. Migraines and gastrointestinal problems: Is there a link?
  175. Migraines and Vertigo
  176. Migraines: Are they triggered by weather changes?
  177. Migraines: Simple steps to head off the pain
  178. Molar pregnancy
  179. Morning sickness
  180. Multiple myeloma
  181. Multisystem inflammatory syndrome in children (MIS-C)
  182. Myocardial ischemia
  183. New Hep C Treatment
  184. New Test for Preeclampsia
  185. Nighttime headaches: Relief
  186. Nighttime panic attacks: What causes them?
  187. Norovirus infection
  188. NSAIDs: Do they increase my risk of heart attack and stroke?
  189. Ocular migraine: When to seek help
  190. Orchitis
  191. Orthostatic hypotension (postural hypotension)
  192. Ovarian cancer
  193. Ovarian cancer: Still possible after hysterectomy?
  194. Ovarian hyperstimulation syndrome
  195. Pain Management
  196. Pancreatic cysts
  197. Pap test: Can it detect ovarian cancer?
  198. Parvovirus infection
  199. Peanut allergy
  200. Pelvic inflammatory disease (PID)
  201. Peritoneal carcinomatosis
  202. Peritonitis
  203. Pilocytic astrocytoma
  204. Pineal gland tumor
  205. Pinworm infection
  206. Pituitary tumors and adenomas
  207. Plague
  208. Polio
  209. Polymorphous light eruption
  210. Porphyria
  211. Postpartum preeclampsia
  212. Preeclampsia
  213. Pregnancy and COVID-19: What are the risks?
  214. Preventing Kidney Stones
  215. Pseudomembranous colitis
  216. Pyloric stenosis
  217. Radiation sickness
  218. Recurrent breast cancer
  219. Rhabdomyolysis
  220. Ricin poisoning
  221. Rotavirus
  222. Ruptured eardrum (perforated eardrum)
  223. Safe outdoor activities during the COVID-19 pandemic
  224. Safety tips for attending school during COVID-19
  225. Salmonella infection
  226. Salt craving: A symptom of Addison's disease?
  227. Scarlet fever
  228. Scrotal masses
  229. Self-care for the flu
  230. Sex and COVID-19
  231. Shaken baby syndrome
  232. Silent heart attack
  233. Smallpox
  234. Social anxiety disorder (social phobia)
  235. Spider bites
  236. Spinal headaches
  237. Spontaneous coronary artery dissection (SCAD)
  238. Staph infections
  239. Strep throat
  240. Subarachnoid hemorrhage
  241. Sulfa allergy
  242. Swallowing gum: Is it harmful?
  243. Tapeworm infection
  244. Testicular torsion
  245. Thunderclap headaches
  246. Toxic shock syndrome
  247. Vascular rings
  248. Vasovagal syncope
  249. Ventricular fibrillation
  250. What is a migraine? A Mayo Clinic expert explains
  251. What is cirrhosis? A Mayo Clinic expert explains
  252. What is kidney disease? An expert explains
  253. What is stomach cancer? A Mayo Clinic expert explains
  254. Wheat allergy
  255. White stool: Should I be concerned?
  256. Whooping cough
  257. Whooping cough
  258. Why isn't there a hepatitis C vaccine?
  259. Wilson's disease
  260. Zollinger-Ellison syndrome